class_docstr: Layer class, which contains the information of graph.
docstr: Clear size
docstr_tok: ["Clear","size"]
code: def clear_size(self):
      """
      Clear size
      """
      if (
          self.graph_type == LayerType.attention.value
          or LayerType.rnn.value
          or LayerType.self_attention.value
      ):
          self.size = None
  
imports: import copy
  import hashlib
  import logging
  import json
  import random
  from collections import deque
  from enum import Enum, unique
  from typing import Iterable
  import numpy
label_desc: Use image node_id 4 for calling the Layer obj's underlying member method code with example usage: obj.clear_size() without return types